What is a Private key, multiple keys is used to encrypt and decrypt a message and must be given to the recipient of your message to decrypt the data, A single key is used to encrypt and decrypt a message and must be given to the recipient of your message to decrypt the data, A single key is used to only decrypt a message and must be given to the recipient of your message to decrypt the data, A single key is used only to encrypt a message and must be given to the recipient of your message to decrypt the data, What is a Public key, Three keys are used at once- one to encrypt and the other to decrypt the data, One key that is used at once- one to encrypt and the other to decrypt the data, Two keys are used at once- one to encrypt and the other to decrypt the data, Four keys are used at once- one to encrypt and the other to decrypt the data, What is Caesar shift cipher, When numbers replaces letters before decoded, Where a letter is substituted by the next letter only., where all letters are substituted by the letters 10 spaces infront only. , a type of substitution cipher, i.e., each letter of a given text is replaced by a letter some fixed number of positions down the alphabet., What is RLE frequency, black = 1 white =0, black = 0 white =0, black = 1 white =1, black = 0 white =1, What is RGB, Red, Blue, Green, green red white, black blue blue, white green blue.

COMPUTER SCIENCE UNIT 3

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